Shanghai Daoqin Plastics Co., Ltd.

目 front full 国人民齐动员, upper lower 一心, resistant new type 冠状病毒, and positive in key/critical 时期, versus in reinforcement 信心, measures 当, 一定会打赢 this resistant new type 冠状病毒 full 民战役.

in this 次战役 in, 我们看 to polymer/macromolecule material non large function.

一, medical grade and one-time property anti 护服

medical grade main/primary use polymer/macromolecule material formed 无纺布 made, Common medical grade 5口罩 is 例. medical use generally is more structure, generally is SMS structure, 示意图见图一 and 图二.

in standards GB/T 32610 in medical use 口罩, less is 3层, 即我们说 SMS（2层S层 and 1层M层）, currently inner most high is 5层, 即SMMMS（2层S层 and 3层M层）.

this S table/sheet viscous 层（Spunbond）, its fiber comparison coarse, in 20 micron （μm） left right, 2层S纺 viscous main/primary function is 支撑整 无纺布 structure, for retardant 隔并没 has large function. 口罩里面 most important is retardant or 则熔喷层M（Meltblown）, 熔喷层 fiber comparison fine, in 2 micron （μm） left right, therefore has viscous 层直径 十 separation 之一, this for anti fine 菌, liquid its important function. if S纺 viscous more, 口罩就 comparison hard, 而熔喷层M more, 则呼吸 comparison difficult, therefore from 口罩呼吸 difficult easy degree can 判断口罩 隔绝效果, 呼吸越困 difficult, retardant 隔效果 more good, is, if M层变 is film, basic upper can 呼吸, is retardant 隔, fast 不行, therefore, this is technology issues.

currently this 无纺布材 material main/primary is use Common polymer/macromolecule material —— polypropylene (PP) manufacturing, different for polypropylene (PP) requirements has different. 例如M层 requirements good flow property, need use high MFI polypropylene (PP). S层 requirements high strength. 而我国, high MFI polypropylene (PP) also is very more, technology is strong/high.

another one-time property anti 护服也 is 无纺布做, requirements and medical grade 口罩 无纺布材 material similar.

二, anti 护目镜 and 面罩

in anti grade comparison high lower, need use to anti 护目镜 and 面罩.

以我们 理 understanding, sheet/slice 吗, can can is 玻璃. 但实际 upper, in therefore sheet/slice, 包括眼镜镜 sheet/slice, is polymer/macromolecule material 做. most Common is PC, PMMA and other, polymer/macromolecule material sheet/slice, light 便, easy 碎, but also molding easy, efficiency high, but also can formed structure.

三, liquid, injection molding use product

currently use one-time property liquid device and injection molding tube/pipe, full is polymer/macromolecule material 做. liquid tube/pipe, front most main/primary is PVC材 material made formed, in has versus 当一部 separation is TPE材 material.

another use amount large is injection tube/pipe, main/primary has PVC and polypropylene (PP).

四, product packaging

this type of block 化 房屋, use a large amount of polymer/macromolecule material.

in addition also has various upper lower water system, system and other.......

polymer/macromolecule material development, for different field/area application, formed large general purpose material, and large engineering plastics, but also in 一 特殊 field/area application 特殊材 material. can 说我们现 in 衣食住行, 离不开 polymer/macromolecule. 而本次 resistant new type 冠状病毒战役 in, polymer/macromolecule material 同样发挥 non important function!